Dynamics and Effective Actions of BCS Superconductors

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We derive effective dynamical theories for metals and BCS superconductors, based on the effective action formalism. Both the metallic regime $T\gtrsim T_{C}$ and the superconducting regime $T\ll T_{C}$ are studied in the clean and dirty limit. Furthermore, we consider the effect of particle-hole asymmetry in the band structure. Using gauge invariance, the electrodynamics of the problem is formulated in a transparent way. The effective actions are useful starting points for treating dynamical problems involving BCS superconductors.
14 pages Revtex

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Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/151741

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9703124
 http://arxiv.org/abs/cond-mat/9703124

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arXiv